Portable road machinery.



R. E. LEIGHTON & J. H. CLEARWATER.

PORTABLE ROAD MACHINERY.

APPLICATION FILED JAN. 20. I913.

1,214,692. Patented Feb. 6, 1917.1

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INVENTORS ATTORNEY WITNESSES R. E. LEIGHTON & J. H. CLEARWATER.

PORTABLE ROAD MACHINERY.

APPLICATION FILED JAN.20, 1913.

Patented Feb. 6, 191?.

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PORTABLE ROAD MACHINERY.

APPLICATION FILED JAN. 20, l9l3 1,214,692, Patented Feb. 6,1917.

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nrvrn are an ROBERT E. LEIGHTON AND JAMES H. CLEARWATER, 0F KINGSTON, NEW YORK, ASSIGN- ORS TO UNIVERSAL ROAD MACHINERY (10., A CORPORATION OF NEW YORK.

PORTABLE ROAD MACHINERY.

Specification of Letters Patent.

Patented Feb. 6, 1917.

Application filed. January 20, 1913. Serial No. 743,053.

To all whom it may concern:

Be it known that we, ROBERT E. LEreHToN and JAMES H. CLEARWATER, citizens of the United States, and residents of the city of Kingston, county of Ulster, and State of New York, have invented certain new and useful Improvements in Portable Road Machinery, whereof the following is a specification, reference being had to the accompanying drawings.

This invention particularly relates to vehicles comprising machinery for preparing and delivering road building material, and is especially directed to means for elevating such vehicles, whereby the material contained therein may be conveniently discharged by gravity into wagons, cars, or other means of conveyance for transporting said material as required.

The principal object of this invention is to provide a vehicle of the general type set forth, with lifting jacks integrally attached to and carried by the vehicle frame and adapted to lift said vehicle from the road surface, and to support it in selected elevated positions.

Further objects of this invention are, to provide such a vehicle with lifting jacks respectively provided with supporting plungers, having extensions relatively adjustable to engage the surface of a roadway of uneven contour; to provide means to efiect the raising of said vehicle from the road surface uniformly upon said jacks; and to provide means for clamping said vehicle to said jacks, to rigidly support it thereon when thus elevated. 7

Further objects of this invention are, to provide means for raising and supporting the jacks spaced from the road surface when not supporting said vehicle, and to provide means for securing said plungers and their respective extensions in telescopic relation.

This invention also comprehends a novel arrangement of the lifting mechanism whereby separate cables wound oppositely upon a common winding shaft or drum are respectively connected to lift the vehicle with respect to the jacks and to lift the jacks with respect to the vehicle, said winding drum being conveniently actuated by a worm and worm-gear cooperative to either rotate said drum or to prevent its rotation, as desired.

This invention further includes all of the various novel features of construction and arrangement hereinafter more definitely specified.

It has been the custom in the preparation of crushed stone for concrete work road building and the like to employ portable crushing plants consisting ordinarily of a rock crusher mounted upon a truck and to which is attached a bucket elevator for lifting the stone to a revolving screen, where it is separated into various sizes. Said revolving screen is generally superimposed upon a portable storage bin divided into compartments, arranged to receive the different grades of stone. Such bins are usually mounted upon wheels in connection with a crusher and engine or other prime mOVer constituting a complete crushing plant.

Recently there has been employed, especially in highway construction, a type 0 hauling wagon designed to be used in trains of two or more, drawn by a steam road roller or traction engine and'built to carry from four to six cubic yards of. crushed stone or other such material in each vwagon. Such hauling wagons have sides which extend much higher above the road surface than the ordinary horse-drawn contractors dump wagon, and difficulty has been experienced in loading them from the usual type of portable stone bin. In order, therefore, that the loading or discharging chutes of the stone bins may have their free ends of a sufiicient height above the surface of the ground to discharge the material by gravity into the high-sided hauling wagons, it has been found necessary to either excavate a roadway alongside of the bin to a lower level than the level of the surface upon which the bin is supported, or. to raise such bin from the ground to a height such as will enable the mouths of the chutes to extend over the top edge of the wagon receptacle. The former practice being awkward and objectionable, the structure herein shown and described is devised for providing means to quickly and conveniently raise the vehicle,

comprising the bin, bodily from the ground and suitably supporting it in such position as to provide for the gravity discharge into the more modern types of transporting vehicles.

In the accompanying drawings, Figure 1 is a perspective view of a well-known type of portable stone bin comprising a vehicle, provided with lifting jacks constructed in accordance with this invention, said bin being shown supported in elevated position on said jacks; Fig. 2 is a skeletonized side elevational view of the structure shown in Fig. 1, portions of said structure being removed for convenience of illustration, and the lifting plungers being extended to engage the road surface, and in position to support the vehicle; Fig. 3 is a plan view of the structure shown in Fig, 2, diagrammatically illustrating the elevating mechanism; Fig. 4 is a front elevational view of the structure shown in Fig. 2, showing the supporting plungers uplifted and supported in an inoperative position on the vehicle; Fig. 5 is an enlarged front elevational view of one of the elevating plungers, showing its telescopic extension projected and corresponding to the position shown in Fig. 2; Fig. 6 is an enlarged side elevational view of one of the elevating plungers, showing its telescopic extension retracted in telescoped relation with its plunger, and corresponding to the position shown in Fig. 4; Fig. 7 is a horizontal sectional view taken transversely through the plunger shown in Fig. 5, on the line 77 in said figure; Fig. 8 is a horizontal sectional view, taken transversely through the plunger and guide shown in Fig. 6, on the line 88 in said figure, and Fig. 9 is a longitudinal sectional view through the plunger and the collars at the end of the same.

in said figures, the bin 1 is conveniently supported by the framing 2 of the vehicle, which comprises the rear wheels 3 on the axle 4 having a fixed axis, and the front wheels 5 on the axle 6, which is movable about the vertical axis of the king-bolt 7 and guided by the tongue 8', by which said vehic'le is arranged to be drawn. I

Superimposed upon the bin 1 is a. cylindrical screen 9 having a shaft 10 provided with a driving pulley 11 and mounted for rotation iii-suitable bearings 12 in the vertically adjustable frame 13, which may be raised and lowered with respect to the bin 1 and the framing 2, such raising and lowering being conveniently eiiected by the chain 14 and crank-handle 15 through the gearing 1 'lhe bin 1 is provided with a bottom wall 18 which extends laterally from a longitudinal peak or ridge obliquely downward, and projects,'as best'shown "in "Fig. 1,'out' wardly beyond the side walls of said bin, and supports the chutes 20 which respectively register with suitable outlet apertures 21 in the side walls of said bin. Said chutes 20 are provided with movable extensions 23 hingedly connected'thereto at 24 and provided with yokes 25 pivotally engaged there with near their outer free ends and having suitable controlling cords or chains 26. Said cords or chains 26 extend over pulleys 27 adjacent to the top of the sides of the bin 1 and respectively have rings 28 engaged with suitable hooks '29 at the outer free edges of the bottom wall 18, for supporting the movable hinged portions 23 of the chutes 20 in inoperative position, said rings being conveniently grasped by the operator to effect the lowering of the movable portion of the chutes to the required angle of slip, when it is desired to discharge material from said bin into a wagon or other suitable conveyer.

The vehicle framing 2 has the corner posts 30, to each of which a lifting jack comprising a cylindrical plunger 31 is attached by suitable brackets 32 and 33 forming guides slidably embracing said plungers, in which they may be conveniently reciprocated. The bracket 32 comprises a stationary bracket member and a relatively adjustable cap 34, which is connected with the stationary bracket member by the set screws 35, by which the cap 34 may be suitably clamped upon the plunger 31 to rigidly engage said bracket with said plunger.

The bracket 33, which is similar to the bracket 32, is provided with a relatively adjustable cap 37, which is secured thereto by the set-screws 38 and may be adjusted by said screws to clamp the plunger 31 in the same manner as it is clamped by the cap 34, above described. The plunger 31 is provided, adjacent to its lower end, with a collar 40, secured thereto by the set-screw 41 and provided with the sheave 42, and said plunger is arranged to be raised to the in operative position shown in Fig. 4 and supported' in such position by the chain or cable 44, which has one end attached to the lug 45 on the adjustable cap 34 of the bracket 32., said chain or cable being passed beneath said sheave 42 and'over the sheave 47, suitably journaled in the bearing 48 on the cross-bar 49 of the framing 2, and having its other end attached to the winding drum or shaft 50, which, as best/shown in Fig. 3, is suitably mounted for rotationin the bearings 51 and52 carried by the platform 55 extending across the vehicle, beneath the bin, and supported upon the framing 2. Each plunger 31 is provided with the telescopic extension 57, which is conven iently secured in its inoperative position,

telescoped within said plunger, as shown in through the collar 4-0 and wall of the plunger 81. The plunger extension 57 is provided with the slidable collar 59, which may be suitably engaged therewith by the setscrews 60, and which is arranged to be adustably secured thereon in engagement with the end of the plunger 31 when the telescopic extension 57 is permitted to rest upon the surface of the ground, as shown in Fig. 2, so that the plunger 31 may be supported thereby when the vehicle is elevated.

The elevation of the vehicle is efiected by the chain or cable 63, which is connected at one end with the lug 64 on the bracket 33 and extends over the sheave 65, suitably journaled in the bearing 66 at the top of the plunger 31, thence beneath the sheave 68, suitably journaled in the bearing 4-8 on the bar 49, to the winding shaft or drum 50 and is attached thereto to be wound thereon in opposition to the chain orcable 44, so that the rotation of the shaft or drum 50 in either direction, will contemporaneously wind one cable and unwind the other cable of each of the plungers 31 at the corners of the bin.

Referring now to the means for rotating the shaft or drum 50, as best shownin Fig. 3, said shaft is provided with the wormgear 70 which is cooperatively engaged with the worm 72 on the shaft 73. Said shaft 73 is suitably journaled in bearings 74: and 75, and provided with the crank-handle 76, by which it may be conveniently rotated. It will be obvious that the vehicle comprising the bin and carrying the elevating jacks may be trundled to the desired locality, whereupon the extensions 57 of the respective plungers may be dropped down to engage the surface of the ground upon which they are to be supported. and their respective s1idable supporting collars 59 slipped up into engagement with the lower end of the plunger 31, andengaged in adjusted relation by the set-screws 60, adjacent to the upper end of said extension 57. Having thus suitably adjusted the relative lengths of the jack plungers to accommodate the varying contour or the surface of the surrounding ground, the structure is ready to be elevated or jacked up upon said plungers, which may be eflected by turning the crank-handle 76 to rotate the drum or shaft 50 in a direction requisite to wind the cables 63 of the respective plungers, whereby the structure comprising the vehicle and bin is uplifted bodily from the ground, upon the jack plungers, to the desired elevation requisite for delivering the material contained in the bin by gravity into such carriers as are provided for transport ing the material therefrom. When the structure is elevated to the desired height, the set screws 35 for clamping the cap 34 to the bracket 32, and the set-screws 38 for clamping the cap 37 to the bracket 33, are tightened, whereby said brackets 32 and 33 are rigidly engaged with their respective plungers and support the structure independently of the cables 63, so that said cables may be relieved of the supporting strain.

It is not desired to limit this invention to the precise details of constructionand arrangement herein set forth, as various modifications may be made therein without departing from the essential features of the inventionas defined in the appended claims.

Having thus described our invention, We claim:

1. In portable road machinery, comprising a vehicle having means to discharge material therefrom by gravity, the combination with a plurality of supporting plungers comprising adjustably related telescopic members, of means carried by said vehicle for movably supporting said plungers, means comprising a vertically adjustable collar to adjustably engage the respective members of said plungers together with the lower extremity of the lower member of each plunger resting upon the road surface, and means cooperative with and including said plungers to elevate said vehicle upon said plungers.

2. In portable road machinery, comprising a vehicle having a bin and means for discharging material therefrom by gravity, the combination with supporting plungers carried by said vehicle and comprising relatively movable members, of means for supporting one of the members of each plunger free from the road surface, means comprising a vertically adjustable collar for adjustably securing the other member of each plunger to the supported member with its lower extremity engaging the road surface, winding mechanism comprising a worm gear, and means connecting said winding mechanism and said plunger, operative to effect the elevation of said vehicle with respect to said plungers.

3. In portable road machinery, comprising a vehicle having a bin and means for discharging material therefrom by gravity, the combination with a plurality of plungers carried by said vehicle and comprising relatively adjustable telescopic members, of means for supporting one member of each of said plungers, means for securing the other member telescopically disposed within the first mentioned member and supported free from the road surface, means comprising an adjustable collar for adjustably securing the members of each plunger together with the extremities of the adjustable members in engagement with the road surface and in position to support said vehicle, vertically alined guides for said plungers secured to said vehicle and comprising members relatively adjustable at right angles 1,214.,ea2 v to theaxis of said plungers, Winding mechaour hands this 15th day of January, A. D.,

nism, means cooperative with said Winding 1913. mechanism and plungers connected to elevate ROBERT E LEIGHTON said vehicle on said plungers, and means for JAMES H GLEARWATER adjusting the members of said guides verticallyadjustable to secure said vehicle with Vitnesses:

said plungers Whenthus elevated. H. I OSTERHOUDT,

In Witness whereof, We have hereunto set *1 P. HUSSEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). 0.

It is hereby certified that in Letters Patent No. 1,214,692, granted February 6,

1917, upon the application of Robert E. Leighton and James H. Olearwater, of

Kingston, New York, for an improvement infPortable Road Machinery, an error appears in the printed specification requiring correction as follows z Page 4, lines 56,

claim 3, strike out the words vertically adjustable and insert the Words at right angles to the axes of said plungers; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 6th day of March, A. 1)., 1917.

F. W. H. CLAY,

[sun] 01. 254--86. Acting Commissioner of Patents. 

